Suspension device for trolley-wires or other conductors carrying currents of high voltage.



a, A: MEAD SUSPENSION DEVICE FOB. TBOLLBY WIRES 0R OTER GONDUOTORSGARRIING GUBBENTS Q M W m f y mm fl m IJM w m f OF HIGH VOLTAGE.- urmoulon FILED 1320.2.1004.

G. A. MEAD. SUBPENSEN DEVICE FOR TROLLEY WIRES OR OTHER UONDUGTORSGARRYING GURRENTS OF HIGH VOLTAGE.

APPLICATION TILED DEO.2,1904.

Patented 00. 2?, 1908.

2 SHEBIfS-SHBET 2.

W%M 45 J.

means for hroomg tho tro lojy PAIR J or ii w rrg i GEURGE MEAD, OFlilANSFIELD, OHIO.

$I$FENJIUN DEVIECIE FDR TEEOLLEY-WIRES OR OTHER CONDUGTORS UARRYIENGCUBZVLEN'IS 0 HIGH VOLTAGE Specification of Letters Patent.

Patented. Dot. 27, 1908.

Application filed December 2, 190%. Seriml No. 235,153.

To all whom it may concern:

Be it known that .l, 31:01am A. lizlnno, a citizen of line UnitedStates, residing (iiilvlansiield, in the county of liichlnnd and a;State or ll/hi0. have invented a now and useful Suspension Device forTrolley-Wires or other Cowlnoiors Carrying Currents of High Voltage. ofwhich the following is o specification.

'lhisinvontion relates to suspension do vices for-trolley wires orotherconductors carrying currents of l h voltage.

The object of the in"; ntion is to provide a 'oonoirnotion whichis'siinplc and elliciont 7. for .sus cnding irolley wires and otherconi'luctors carrying currents of high voltage.

Other objects oi the 'lUYSlliliUI'l will appear more fully horoimitlter. i

The invcnlion consists snhstnnlinllr in tho 2) i'zonsiruotion,coinbimilioin location and H2- in) my invention as Rppliokl to acoronary suspension-for trolloy wires. Fig. 2 is a detail view in sideelovnlion of the insulator oinployeci in cormeotion with asnsponsion(levioo'of my ilivenfion. Fig. 3 is a View in sociion on The line3----3, liig- 52, looking in the (infection of the arrows. 4, 5 and 9are views in control longitudinal section of,

n'ioclifiod forms of "'nsnlntor onil'iracod. within the splrit and scopeof my IDVGllilOl'l. Fig.

6 is a View sin'iilzir to Fig. 1, showing the application of myinvontion to the suspension of 'iirolley'wiros (lllJEC/i from theinsulntor. Rig 7 and 8 are views showing the application. of asuspension device embodying rho principles of n invention, and wire orother "conzlnotorl-v The same part is designated by the some referencesign whcrovcr it occurs through out the several views. 1

In tho use of cloci'ric currents of high Voltage for {no operairionofelectric on s or othcr purposes, ii is (iosirahlo to supporit thetrolley wrro or other condncior in such room,

is also desirable in some illr i'iillciib to sup-- portthe trolley wireor other ('OlELiLlCiOl' with as few sags or clips as on: iblc, therebyproducing a. more nearly straight condition oi the trolley wire, forinsinnre for ilie trolicy wheelflo travel along. This important in thewhere high speed of the our is desired. it is also dvesi z bin tosupport the trolley wire at frequent intervals as a precaution for no;safety of the public in case the trolley wire should break or fall. Thisis especially true whore the trolley wire or conductor carries a'curreni of high vol- Luge. It is also desirable to provide :1 con--siruction of suspension device of the nature referred to "which isinexponsive in mono-- 'fncl'i ro, and which may applied to change overthe consiriictions at present in use for supporting or suspendingtlfOllQ-;Y \Yiil'@5 car rying; cnrrent'of low volizige to a system (losigned for carrying current of high voltage.

.Thc attainment of these and other desirable objects by a constructionwhich is simple, ei'lioiont and economical of n'nnnrfachn-o is nnong thespecial purposes of 111y 13105011i, HTLVPUUOD. I

in the drawings reference-sign .Pi. designnies a post, designed ro beplaced between or' to one side oi? the iracks of an elociric rail wayromlbecl and from which the trolley arm or bracket of [tubular form, butI do not desire to ho'liiniiecl or restricted in this respect. This armor bracket may loo supportecl upon the pos' A in any suitable orconvenient manner, as, for instance, by means of a casting O secured tothe post A, and, provided with a socket in which tho end of the arm orbracket B is inserted and clamped or held in any suitable or con venientmanner, as, for instance, by means of the set screw Di If desired, thearm. or hrackot B only ho bracod to "the posh A in any snilza leinainior; for insizmco, and as shown in F1 0. i-omi 6 a brace rod isconnected one l on in of casting l sccurocl'to the arm or hriliolzci ll,

and a'tqthe other end to the post A. This brace rod may be arrangedabove the bracket or arm B as shown in Figs. '1, o and 7, or, it

desired, a brace rod G connected at one end to a casting H on the postA, and at the other end to a casting 'd on the arm or bracket B, saidbracea'od G being located below the arm or bracket Upon the outer end ofthe'aim or bracket B is receiver an insulator K.

In practice, and. preferably, the insulator is provided with a centralbore longitudh.

nally therethrough", through whiclrthe cnd of the'arin or bracket B isdesigned to he slipped, the insulator being held against cnd wisenmvement upon the arm or bracket B in any suitable or movement manner,as, for

instance, by means of collars L Suitebly secured upon the arm or bracketB.

The insulator K may be of any suitable n'iaterial such as porcelainorother insulating material, and the specific construction of theinsulator may be varied throughout a wide range without departure fromthe spirit and scope of my invention, the'essentiial feature being theprovision of an insulator adapted in support either directly orindirectly a inegrseiiger wire from which a trolley wire or othe'iconductor may be suspended or supported, or else adapted to suspend thetrolley wire or other conductor directly, us will appear more fullyhereinafter.

l t is obvious that the messenger. wire, trolley wire or other condncior may be suspended from or supported by the insulator K in manyspecifically dill'erent ways. For inetance, in the drawing in Figs. 1,2, 3, 6, 7 and 8 I have shown the insulator K provided with a centralperipheral groove or scat, indicated at M, (see Fig. in which i:received the arms N O of a casting, said arms being clamped together bya bolt orotherwise,:.1s indicated at P, at one end thereof, and at theother end being pivoted or otherwise connected together by a' pin Q,from which pin may be suspended a clamping device or hanger. This hangeror clamp device may be of any suitable or convenient type orconstruction.

in Figs. 1, 3, 7 and 8 I have shown a" straight wire hanger ll ofordinary construelion, dceigned to be suspended from the bolt or pin Q,and to receive and support a trolley wire or conductor or messengerwire, from which the trolley wire or (,(HldllClOl' may in turn besuspended. in Figs. 1, 7'and 8 l have shown the hanger R enpportiiu, amessenger wire 8, but-it IS,()l)V1OIlS that the trolley wire orconductor nn 'ht with equal tacilil'ybe carried, or supported. by thehanger li. In Fig. 6 I have shown a clamp dcvii'o 'll ol somewhatdillcrenl constru tion fillu'lllflild i'rom the clamp band which is appliod. lo th insulator A, but Wl)i(ll clamp ordinary or etaiulurd uretruction designed to clamp and suspend directly a trolley wire or otherconductor A. it is obvious, however, that a clamp device ol theconstruction shown in Fig. 6 at 'l may with equal facility be employedto suspend a messenger wire instead of a trolley wire or otherconductor, and such trolley wire or other conductor suspended from themessenger wire in any suitable or convenient manner, as, for instance,bymeansof snsparticular and specific construction of the clamp device orhanger used is unimportant, so far as the principles of my invention areconcerned. It will be understood, of course, that in the messenger wireconstruction the trolley wire or other conductor will be suspended fromthe messenger wire at frequent intervals, whereas the messenger wirewill be supported or suspended by or from the ineulator K on thebrackets or arms B only at the intervals of the posts A along theroadway.

in Fig. 4 l have shown a modified Form of insulator K, having a centralperipheral groove or seal M, and a longitudinal central bore 1tlu-rethrough to be plecvod upon the end of arm or bracket l..

In Fig. t) I have shown another modified Form of insulator K",- providcdwith a central peripheral groove or seal similar to tho groove or heat Mof the construction shown struction shown in Fig. 4-, r-fo as lo-cnablothe Same to be sleeved upon the end of the or bracket B. The form shownIn Fig.

more nearly cylindrical in shape than the form ahown in the otherfigures ol the draw- .ing, and tor this rcusolris economical in manulacturc. it is obvious, however, that i'nzt'ny other specificallyditl'crcnt torms or shapes of insulator may equally well answer thepurpose. be limited or restricted to the exact details of constructionof insulator.

lmtcad of suspending the messenger wire,

trolley wire or other conductor by. means of a strap or band, such as N,O, and a sua pending, hanger or clamp It or .l,such wire or conr'luctormay beeuspcndcd in any other suitable or convenient manner from theiii-I uilaloi'. as, for insl anc'c, by moans of a wire or rod l), aleshown in Fig. 5, v uid wire or i-od l) passing around the conductoror-lrol-- l do not desire, therefore, to;

' heal h the arm or. bar B and bracing the seme'lrom the the wire Sshown in F insulator. It is alsoobvious that, if desired, the messengerwire ma y rest upon the insw later and be held thereon 'iinst danger ofaccidental l'lisplaceaient from its seat in the insulator ii. ansuitable on convenient munner, as, for instance, by the Weight of themg;is, however present to a greater degree in the case of the messengerWire construction than in the case Where the trolley Wire siuiiportedupon or suspended directly lrom the insulator. It is especiallydesirable to so brace the trolley Wire Whether fillpilltil'lill upon orsusaiended directly from the insulator or from a messenger wire atcurves in the roadway, and puii'ticulzirly where the trolley Wire issuspended from a inessmiger wire, in which case the trolley wire liableto be pulled over too far by the crosslnraces or pull-over wires.

it is slso among the special purposes of my invention to provideaconstruction for suitably bracing the trolley Wire against being pulledover out of proper alinenient with the rozulbed, and this object may beaccompli led in many dill'erent ways, and. in Figs and have shown anapplication ot' my invention in various Ways to the ac complislnnent ofthese objects. In Fig. 7 l have shown an insulator li, similar in allrespects to insulator K, and having a band strapped around the centralpart thereof similar to the band comprising the arms h and U of Fig. 3,and from which is suspended a fitting 'l", to which is connected a.brace arm E, said brace arm being connected by means of a clamp T to thetrolley Wire vAll. In this instance the insulator K is placed. upon thebrace (ll arranged be post A, said insulator being held thereon bycollars L, similar to the collars L for holding the insulator K on armor bracket B. it is obvious, however, that; the insulator K and sleevesL may be otherwise suitably supported; for in stance, in Fig. 8 l haveshown theiinsulator mounted directly upon the arm 5, and cona ledthrough brace arm E and clamp d.e-'

vice l to the trolley Wire A. in this instance the under brace G isdispensed with.

it is oh'\ 'ious th't n'iany variations and changes in the 11;: thetrolley Wire againstlateralsway let-ails constiiuctniu and arrangementwould readily occur to persons sh lied in the art and still full Withinthe spirit and scope of n'ivcntion, I do not desire, therefore, to belimited or restricted to the exact details of construction shown anddescrihed. lint l-lavmg now set forth the ObJEECl? and.

nature of my invention, and a construction embodying the principlesthereof, What I claim as new and useful and oi. my own involition, anddesire to Patent, is: l

i. In a suspension device for trolley or other Wires or conductors, anarm or bracket,

by Letters an insulator sleeved thereon, a trolley or so other wire orconductor supported by said insulator, and an insulated brace rod con--nectcd to said Wire or conductor. 2. In a suspension device for trolleyor other Wires or conductors, an armor bracket; 35)

an insulator slee ed upon said arm or bracket, a trolley or other Wireor comluctor supported by said insulator, an auxiliary insulator, and abrace rod connected to said auxiliary insulator andtoseid Wire or cori-9o ductor.

3.111 e suspension device for trolley or other Wires or conductors, anarm or bracket, an insulator sleeved thereon, an auxiliary n1- sula't ralso sleeved upon said arm or bracket, a trolley or othez'nwire orconductor supported by said first-mentioned insulator, and a brace rodconnected respectively to said auxiliary insulator and to the trolley orother Wire or conductor.

1-, in a suspension. device for trolley or other Wires or coinlncliors,an arm or bracket, an insulator slemcd thereon, a messenger wiresiuiported ly said, insulator, a trolley or other wire or oomliuztorsuspended from said messenger wire, an auxiliary inhibitor, and a bracerod respectivelyconnected to said auxiliary insulator and said trolleyor other wire or conductor.

5. In a. SllSlIlGllSlOD device for trolley or other Wires or conductors,an arm or bracket, means for supporting the same, an insulator carriedby fifitltl arm or bracket, a messenger wire supported by saidinsulatoig a trolley the free end'of said. so orfbra'cltet, a trolley orother Wire or conductor support-ed from said insulator, and meanstor-bracing said trolley or other Wire. i

7 Elle comhii'ietion with a supporting urn'i or hruclzet su l v Wt; atone end 13 or other Wire or conductor suspein'lcd from 11.5

upon said post, a brace cbm'iecting said arm or bracket and said post,an insulator sleeved upon said arm or bracket, a messenger wiresupported by said insulator, a trolley or other Wire or conductorsuspended from said messenger Wire, and means for-bra trolley or otherWire 01" conductor.

.8. In a suspension device for trolley wires or other conductors, an armor bracket and means for supporting the same, in combination with asleeve composed of insulating material into which said bracket passe-s,means passing around said sleeve for supporting a trolley Wire orconductor, and adjustable means on the bracket for holding the sleeveagainst longitudinal movement thereon. 9. In a suspension devicefortrolley Wires or other conductors, an arm or bracket,

means for supporting the same, in combination with a sleeve composed ofinsulating material, and through which said bracket passes, the outer orfree end of said bracket being of uniform diameter, whereby the sleevemay be adjusted longitudinally on said arm, the sleeve having means forsi'ipporting a trolley Wire and holding the wire against movementlongitudinally of the sleeve, and adjustable means for holding thesleeve against movement longitudinally on said arm.

10. In a suspension device for trolley Wires or other conductors, an armor bracket, and means for supporting the same .in substantially ahorizontal position, in combination with a sleeve composed of insulatingmaterial, through which said arm passes, :the

outer or free end of said arm being of smallerdiameter than the passagethrough the sleeve, whereby the sleeve may be slipped over the outer endof the arm utter-the arm is fixed tudinal movement on the arm.

in place, or may be removed therefrom, and means, for holding the sleeveagainst longi- 11. In a suspension device for trolley 'Wll'GS thecombination with a supporting railways, the combination with. a pole andan arm pro ecting laterally therefrom, an

inclined brace rod between said arm and said pole, insulators adjusiublymounted upon the laterally projecting arm, a messencable suspended fromone of said insulators, a trolley conductor suspended from saidmessenger cable and a stcaclying rod extending between the trolley cm.the other msulator. 4

13. In an overhead structure for electric :"ter and railways, a trolleyconductor, a messenger wire or cable from which. the trolley conductoris suspended, a supporting structure embodying ad ustable insulators,means tor suspending the messenger wire or cable from one of saidinsulators, and a sterulying rod between the trolley conductor and theother insulator.

l i. 'l'. he combination with an approximately horizontal rod or bar, ofa circumferentially grooved, tubular insulator that is so mounted uponsaid arm or bar as to be longitudinally adjustable, and means fordetachably clamping the insulator in any position to which it may beadjusted.

l5.'-The combination with a circumferentially grooved insulator having ahole extending longitudinally through it, of a supporting member o'tless: diameter than said hole lipou which the insulator is mounted a'udmeans for clamping the insulator in any position to which it may belfil'ril'ltlttlillilllj] adjusted.

16. it cylindrical porcelain insulator to? an electric conductor having:one or more circumferential grooves and provided with means for soclamping to an internal so port that it may belongitudinally adjuster.thereon.

17. A tubular insulator having circmnfer entialj ridges and meanstor soclamping it 'to a supporting arm or bar that it may be longitudiimllyadjustable.

